$OpenBSD: patch-src_openvpn_syshead_h,v 1.4 2017/06/11 12:15:50 jca Exp $

- missing include
  https://github.com/OpenVPN/openvpn/commit/e5b236eaba4512f86da917a0a63dd0f84e1b02db

--- src/openvpn/syshead.h.orig	Wed Feb 15 11:34:39 2017
+++ src/openvpn/syshead.h	Wed Feb 15 11:35:49 2017
@@ -288,6 +288,10 @@
 #include <netinet/ip.h>
 #endif
 
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+
 #ifdef HAVE_NET_IF_TUN_H
 #include <net/if_tun.h>
 #endif
